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Finding the Third Proportional to 2,206.13 and 2,809.31

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Solution

The third proportional to 2,206.13 and 2,809.31 is: 3,577.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.13 : 2,809.31 = 2,809.31 : x
  2. Step 2: Convert to fraction form
    2,206.13/2,809.31 = 2,809.31/x
  3. Step 3: Cross multiply
    2,206.13x = 2,809.31 × 2,809.31
  4. Step 4: Simplify right side
    2,206.13x = 7,892,236.72
  5. Step 5: Solve for x
    x = 7,892,236.72/2,206.13
  6. Step 6: Final answer
    x = 3,577.42

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.